Add files via upload

2021-04-25 16:08:48 +03:00
commit e1cdcf01e9
49 changed files with 2866 additions and 0 deletions
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+#include "LightSolver.h"
+#include "Lightmap.h"
+#include "../voxels/Chunks.h"
+#include "../voxels/Chunk.h"
+#include "../voxels/voxel.h"
+#include "../voxels/Block.h"
+
+LightSolver::LightSolver(Chunks* chunks, int channel) : chunks(chunks), channel(channel) {
+}
+
+void LightSolver::add(int x, int y, int z, int emission) {
+	if (emission <= 1)
+		return;
+	lightentry entry;
+	entry.x = x;
+	entry.y = y;
+	entry.z = z;
+	entry.light = emission;
+	addqueue.push(entry);
+
+	Chunk* chunk = chunks->getChunkByVoxel(entry.x, entry.y, entry.z);
+	chunk->modified = true;
+	chunk->lightmap->set(entry.x-chunk->x*CHUNK_W, entry.y-chunk->y*CHUNK_H, entry.z-chunk->z*CHUNK_D, channel, entry.light);
+}
+
+void LightSolver::add(int x, int y, int z) {
+	add(x,y,z, chunks->getLight(x,y,z, channel));
+}
+
+void LightSolver::remove(int x, int y, int z) {
+	Chunk* chunk = chunks->getChunkByVoxel(x, y, z);
+	if (chunk == nullptr)
+		return;
+
+	int light = chunk->lightmap->get(x-chunk->x*CHUNK_W, y-chunk->y*CHUNK_H, z-chunk->z*CHUNK_D, channel);
+	if (light == 0){
+		return;
+	}
+
+	lightentry entry;
+	entry.x = x;
+	entry.y = y;
+	entry.z = z;
+	entry.light = light;
+	remqueue.push(entry);
+
+	chunk->lightmap->set(entry.x-chunk->x*CHUNK_W, entry.y-chunk->y*CHUNK_H, entry.z-chunk->z*CHUNK_D, channel, 0);
+}
+
+void LightSolver::solve(){
+	const int coords[] = {
+			0, 0, 1,
+			0, 0,-1,
+			0, 1, 0,
+			0,-1, 0,
+			1, 0, 0,
+		   -1, 0, 0
+	};
+
+	while (!remqueue.empty()){
+		lightentry entry = remqueue.front();
+		remqueue.pop();
+
+		for (size_t i = 0; i < 6; i++) {
+			int x = entry.x+coords[i*3+0];
+			int y = entry.y+coords[i*3+1];
+			int z = entry.z+coords[i*3+2];
+			Chunk* chunk = chunks->getChunkByVoxel(x,y,z);
+			if (chunk) {
+				int light = chunks->getLight(x,y,z, channel);
+				if (light != 0 && light == entry.light-1){
+					lightentry nentry;
+					nentry.x = x;
+					nentry.y = y;
+					nentry.z = z;
+					nentry.light = light;
+					remqueue.push(nentry);
+					chunk->lightmap->set(x-chunk->x*CHUNK_W, y-chunk->y*CHUNK_H, z-chunk->z*CHUNK_D, channel, 0);
+					chunk->modified = true;
+				}
+				else if (light >= entry.light){
+					lightentry nentry;
+					nentry.x = x;
+					nentry.y = y;
+					nentry.z = z;
+					nentry.light = light;
+					addqueue.push(nentry);
+				}
+			}
+		}
+	}
+
+	while (!addqueue.empty()){
+		lightentry entry = addqueue.front();
+		addqueue.pop();
+
+		if (entry.light <= 1)
+			continue;
+
+		for (size_t i = 0; i < 6; i++) {
+			int x = entry.x+coords[i*3+0];
+			int y = entry.y+coords[i*3+1];
+			int z = entry.z+coords[i*3+2];
+			Chunk* chunk = chunks->getChunkByVoxel(x,y,z);
+			if (chunk) {
+				int light = chunks->getLight(x,y,z, channel);
+				voxel* v = chunks->get(x,y,z);
+				Block* block = Block::blocks[v->id];
+				if (block->lightPassing && light+2 <= entry.light){
+					chunk->lightmap->set(x-chunk->x*CHUNK_W, y-chunk->y*CHUNK_H, z-chunk->z*CHUNK_D, channel, entry.light-1);
+					chunk->modified = true;
+					lightentry nentry;
+					nentry.x = x;
+					nentry.y = y;
+					nentry.z = z;
+					nentry.light = entry.light-1;
+					addqueue.push(nentry);
+				}
+			}
+		}
+	}
+}